DUTTA, Chiranjit; KRISHNAMURTHY, Pannaga; SU, Dandan; YOO, Sung; COLLIE, Gavin; PASCO, Morgane; MARZINEK, Jan; BOND, Peter; VERMA, Chandra; GRELARD, Axelle; LOQUET, Antoine; LI, Jianwei; LUO, Min; BARBOIU, Mihail; GUICHARD, Gilles; KINI, R. Manjunatha; KUMAR, Prakash

doi:10.1016/j.chempr.2023.04.007

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DUTTA, Chiranjit

KRISHNAMURTHY, Pannaga

SU, Dandan

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Chem. 2023-08, vol. 9, n° 8, p. 2237-2254

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Short helical amphipathic oligourea foldamers were designed with distinct hydrophobic and hydrophilic faces. Two of the foldamers (H2OC1 and H2OC2) obtained by solid phase synthesis self-assembled into channel-type nanostructures that show efficient water permeability across lipid membranes while rejecting ions. A self-assembled quaternary structure with two superhelical scaffolds results in the formation of 4.8 and 6.4 A ˚inner pores that were observed in the crystal packing of H2OC1. Both pores have hydrophilic interior and hydrophobic exterior surfaces. Our findings demonstrate the channel-forming ability of oligourea foldamers in lipid bilayers, and such novel artificial water channels could be beneficial for water purification applications.< Réduire

Mots clés en anglais

Oligourea foldamers supramolecular assembly artificial water channels desalination water transport stopped flow

Oligourea foldamers

supramolecular assembly

artificial water channels

desalination

water transport

stopped flow

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Nature-inspired synthetic oligourea foldamer channels allow water transport with high salt rejection

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